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selftests: net: tsn_lib: create common helper for counting received packets

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This snippet will be necessary for a future isochron-based test, so
provide a simpler high-level interface for counting the received
packets.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://patch.msgid.link/20250426144859.3128352-3-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Vladimir Oltean 2025-04-26 17:48:56 +03:00 committed by Jakub Kicinski
parent 426d487bca
commit efa6eb7d77
2 changed files with 12 additions and 6 deletions
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7
tools/testing/selftests/drivers/net/ocelot/psfp.sh
View File

@ -272,12 +272,7 @@ run_test()
"" \
"${isochron_dat}"
# Count all received packets by looking at the non-zero RX timestamps
received=$(isochron report \
--input-file "${isochron_dat}" \
--printf-format "%u\n" --printf-args "R" | \
grep -w -v '0' | wc -l)
received=$(isochron_report_num_received "${isochron_dat}")
if [ "${received}" = "${expected}" ]; then
RET=0
else

11
tools/testing/selftests/net/forwarding/tsn_lib.sh
View File

@ -247,3 +247,14 @@ isochron_do()
cpufreq_restore ${ISOCHRON_CPU}
}
isochron_report_num_received()
{
local isochron_dat=$1; shift
# Count all received packets by looking at the non-zero RX timestamps
isochron report \
--input-file "${isochron_dat}" \
--printf-format "%u\n" --printf-args "R" | \
grep -w -v '0' | wc -l
}